McPhee follows and interviews a man named David Brower. Brower is a renowned environmentalist, who fights for whatever he believes is best for the environment. McPhee describes how Brower first got his start as a conservationist. He had a lot to do with the proposed dams and Brower is quoted as saying "I hate all dams large and small." Brower believes that the dam in Glen Canyon "is the greatest failure of his life." He feels that he was not properly prepared to argue that the dam not be built and to this day he believes that he is totally responsible for its creation. He neglects to remember and accept the fact the he is also personally responsible for the prevention of many dams being built all over the United States.

Brower gets tangled up in a dam controversy with a man named Dominy. This man is the reason that so many dams have been built across the United States. When McPhee first introduces himself to this man, he first notices all of the pictures of the dams around Dominy's desk, and on the walls in his office. Dominy is extremely proud of the work that he and his comitee has done with the wildlife and the construction of dams throughout the States. He scoffs at the idea of Brower and his preservation groups trying to put a stop to their work and he does not believe Brower to be a direct threat to his production. He says that he has done the world a greta service although not everyone sees it that way, and some people argue that by building dams they are defacing the natural Earth and habitat. He laughs when he recalls his few encounters/incidents with Brower and his preservation committees. While I read the introduction to this man I find myself siding with Brower and conservationist people.

A little bit later on McPhee takes a rafting excursion with Dominy and Brower. Brower is the conserrvationist and Dominy is the Commisioner. They take a rafting adventure with many other people and go on a tour. Everyone is aware of the two biases on the raft, they each have their own views on the environment and what ios good for it and the people that live there. The rafting adventure goes on for nearly thirty pages and it is filled with each person giving out suttle hints about why their perspective is right. Every now and again Brower makes a little remark about the beauty of the Grand Canyon and how it should have been preserved, and then Dominy makes a slight remark about what good has come from the creation of the dam. By the end of the article it is obvious that neither person can see the issue through the other man's eyes and they remain at odds with each other over the issue of dams and whether or not the environment benefits or harms from them.